VICOR CORP — Director's Dealing 2018

May 1, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (vicr)
CIK: 0000751978
Period of Report: 2018-04-27

Reporting Person: RUSSELL ROBERT F (VP-Product Marketing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-04-27	Common Stock	S	621	$36.067	Disposed	0	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non Qualified Stock Option	$6.29	2023-06-17	Common Stock (4000)	4000	Direct

Footnotes

F1: The shares being sold were acquired under the Vicor 2017 Employee Stock Purchase Plan on 2/28/18.

F2: Granted on 6/17/2013 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.